Q: What are the types of galvanized pipes? A: Galvanized pipe is mainly divided into hot dip galvanized pipe and electric galvanized pipe. The hot dip galvanized pipe has thicker zinc layer and stronger corrosion resistance. The zinc layer of electrogalvanized pipe is thinner, but the surface is smoother.
Q: How long is the service life of galvanized pipe?
A: The service life of galvanized pipe depends on the thickness of zinc layer and the use environment. Usually in a normal outdoor environment, the service life of hot-dip galvanized pipes can reach 30-50 years, and the life of electric galvanized pipes is slightly shorter.
Q: What is the zinc layer thickness of galvanized pipe?
A: The thickness of the zinc layer of the hot-dip galvanized pipe is generally 40-60 microns, and the thickness of the zinc layer of the electric galvanized pipe is 10-30 microns, which varies according to different product and standard requirements.
Q: What is the corrosion resistance of galvanized pipes?
A: Galvanized pipe provides good corrosion resistance by forming a zinc layer on the surface of the steel pipe. The corrosion resistance of hot-dip galvanized pipe is better than that of electric galvanized pipe, especially suitable for outdoor and humid environment.
Q: How to identify the quality of galvanized pipe?
A: The quality of galvanized pipe can be judged by zinc layer thickness, surface finish, zinc layer adhesion and corrosion resistance test. The surface of qualified galvanized pipe should be smooth, the zinc layer should be uniform and firmly attached.